Abstract: In this paper, we propose the design and implementation mechanism for different digital modulators such as Quadrature Amplitude QAM-64 modulators based on the use of Quadrature Direct Digital Frequency Synthesizer (QDDFS) using Cyclone II EP2C20F484C7 FPGA from ALTERA placed on education and development board DE-1 with the following parameters:
-Clock frequency : FCLK=50MHz .
-Modulation type of signal is : QAM-64 .
-Frequency range : (0.011 Hz…10 MHz) .
-Frequency Resolution : (0.011 Hz) .
-Signal amplitude(5V) .
-Data frequency : 1KHz .
-Digital designs allow the slides to modify and design development for results and better through reprogramming, depending on the user's desire.
Keywords : Digital Modulator ,QAM , QAM-46 , DDFS, QDDFS , FPGA.
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DOI:
10.17148/IMRJR.2024.010205
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